Weekly digest
Week of 20 April 2026
60 of 80 listed below
80 new roles this week across 27 companies; the biggest movers: OpenAI (+18), Mach Industries (+18), Anthropic (+10).
Research
- Member of Technical Staff (Research / Engineering) — Ineffable Intelligence Ineffable Intelligence is making first contact with superintelligence
- Research Engineer, Machine Learning (RL Velocity) — Anthropic Develops Claude, an AI assistant, with research focused on AI safety and alignment
- Research Engineer, Machine Learning (RL Velocity) — Anthropic
- Forward Deployed Engineer - LLM Post-training — Reflection AI Builds open AI models that enable anyone to control and shape intelligent systems
ML engineering
- Member of Technical Staff - ML Performance — Modal Modal is a cloud-based serverless computing platform designed for data science and machine learning teams
- Performance Modeling Engineer ~2 — OpenAI Develops AI systems including large language models like ChatGPT for research and commercial use
- Software Engineer - Voice AI (Inference Runtime) — Baseten Platform for deploying and serving machine learning models with high-performance inference at scale
- Performance Modeling Engineer — OpenAI
- Software Engineer, Inference - Performance Optimization — OpenAI
Infrastructure
- Director, Compute & Infrastructure FP&A — OpenAI
- COMSEC Manager (CRO) (TS//SCI) — K2 Space Builds high-power satellite buses designed for LEO, MEO, and GEO missions with 10x more power than constellati
- Member of Technical Staff — Reliability-CI Infrastructure — RadixArk Builds open-source inference and training infrastructure systems for AI applications
- CPU/Storage/PoP-WAN Program Manager — OpenAI
- Data Center Infrastructure Engineering Program Manager (Network and Whitespace) — OpenAI
- GPT Infra Technical Program Manager — OpenAI
- Performance Modeling Lead — OpenAI
- Senior Software Engineer, Infrastructure & Simulation — Mach Industries Develops low-cost autonomous aerospace and defense systems including drones, munitions, and propulsion compone
- Software Engineer, Platform — Mercor Marketplace connecting domain experts with AI companies for task evaluation and model benchmarking
- Deployed Infrastructure Engineer — Sierra Conversational AI platform that deploys customized agents across chat, voice, email, and SMS for customer supp
- Infrastructure Security Engineer — Modal
- Software Engineer, Platform — OpenRouter Unified API gateway providing access to 500+ AI models across 80+ providers with intelligent routing
Software
- Member of Technical Staff (Software Engineer, Computer) — Perplexity AI-powered answer engine that provides conversational, source-backed responses to user queries
- Member of Technical Staff (Software Engineer, Monetization) — Perplexity
- Sr. Member of Technical Staff — WithCoverage Digital platform for managing insurance policies, claims, and risk for CPG brands and growing businesses
- Engineering Manager, Multimodal (API) — OpenAI
- Project Engineering Manager - Houston — Mariana Minerals Software-first developer and operator of critical mineral projects for energy, AI, and defense
- Senior Firmware Engineer, Vehicle — K2 Space
- Anthropic Fellows Program, The Anthropic Institute (Economics & Policy) — Anthropic
- Software Engineer, Applied AI — Mercor
- Product Engineer — CuspAI Uses AI and molecular simulation to accelerate materials discovery for pharma, biotech, and clean energy
- Audio Engineering (Freelance) — ElevenLabs AI platform generating realistic speech, music, and sound effects across 70+ languages
- Compliance Engineer — ElevenLabs
- DFT Engineer — Fractile Builds specialized processors that fuse computation with memory to run large language models up to 25x faster
- Software Engineer, Product — OpenRouter
- Forward Deployed Engineer - Singapore — OpenAI
- Workload Porting & Performance Engineer — OpenAI
- Autonomy and Robotics Software Engineer — Mach Industries
- Build Engineer — Mach Industries
- Composites Design Engineer — Mach Industries
Hardware
- Construction Manager (Mechanical) — xAI Develops Grok, an AI platform offering reasoning, code, voice, image, and video capabilities through a unified
- Senior Electrical Engineer — Mach Industries
- 3P Silicon Architect — OpenAI
- SOC Architect — OpenAI
- Electrical Engineer — Mach Industries
- Mechanical Engineer — Mach Industries
Product
Go-to-market
- General Manager - Germany — ElevenLabs
- Technical Account Manager — Cartesia Real-time speech and transcription models for voice agents with low-latency State Space Model architecture
- Enterprise Account Executive, Federal Civilian Sales — Anthropic
- Enterprise Account Executive, Federal Civilian Sales - Commerce & Interior — Anthropic
- Enterprise Account Executive, Federal Civilian Sales - Transport & Land — Anthropic
- Revenue Strategy & Operations — Anthropic
Operations
- EMEA Deal Strategy & Operations Manager — LangChain Framework and platform for building, testing, deploying, and monitoring LLM-powered agents
- Workday Business Systems Analyst, People Systems — Anthropic
- Controller — Crosby AI-powered contract review for MSAs, DPAs, and NDAs with lawyer oversight and fixed pricing
- Founding HR Leader — Periodic Labs Builds AI scientists and autonomous laboratories to accelerate discovery in physical sciences
Other
Every line links to the role on Liftoff Jobs, and from there to the company's own board. · Past issues · Search the whole index
One email a week, Monday morning. Nothing is sent unless you click the link in the confirmation email. You can switch to a daily email, or stop, from any email we send.